With it's clear sound, small and light construction, the ThunderPower 120 megaphone is perfect for indoor events and smaller outdoor venues. Not to mention a price you can't pass up. All of our megaphones are tested and certified in the USA so the quality is incredible and we back them by a full 1 year, expedited in-house express warranty so you have complete peace of mind. You will be extremely impressed with your ThunderPower Megaphone!